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+* Introduction
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+The purpose of this document is to investigate possible User Interaction designs for Decode task 4.4.
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+More specifically the focus is on investigating how the user of a decode wallet grants permission to decode application for a specific set of personal data.
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+
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+* Data Model
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+** Example wallet profile
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+
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+This sample wallet profile datastructure consists of multiple contexts.
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+No assumptions are made about ontology for now so mention of existing e.g. skos/foaf,
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+everything is in the decode namespace which is well known across applications.
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+
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+Each context has a name and groups on or more properties that consist of a well known type and a value.
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+A type can be part of more than one context.
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+#+name: profile
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+#+begin_src js :results output
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+ var profile = {
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+ contexts :
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+ [
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+ {
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+ title : "personal",
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+ properties :
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+ [
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+ {
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+ type : "decode:name",
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+ value: "Taco van Dijk"
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+ },
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+ {
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+ type : "decode:email",
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+ value : "[REDACTED]"
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+ },
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+ {
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+ type: "decode:address",
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+ value: "[REDACTED]"
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+ },
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+ {
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+ type: "decode:phone",
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+ value : "[REDACTED]"
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+ }
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+ ]
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+ },
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+ {
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+ title: "professional",
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+ properties :
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+ [
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+ {
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+ type : "decode:name",
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+ value : "Taco van Dijk"
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+ },
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+ {
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+ type : "decode:email",
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+ value : "taco@waag.org"
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+ },
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+ {
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+ type : "decode:address",
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+ value : "St. Antoniesbreestraat 69"
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+ }
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+ ]
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+ }
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+ ]
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+ };
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+ process.stdout.write(JSON.stringify(profile));
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+#+end_src
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+
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+#+RESULTS: profile
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+: {"contexts":[{"title":"personal","properties":[{"type":"decode:name","value":"Taco van Dijk"},{"type":"decode:email","value":"taco@yavin4.nl"},{"type":"decode:address","value":"Spaarndammerdijk 194"},{"type":"decode:phone","value":"0641639180"}]},{"title":"professional","properties":[{"type":"decode:name","value":"Taco van Dijk"},{"type":"decode:email","value":"taco@waag.org"},{"type":"decode:address","value":"St. Antoniesbreestraat 69"}]}]}
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+
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+*** Things to further investigate
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+ - Make a big list of possible property types (at least properties that are used in Gebied Online)
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+ - Make a big list of possible context names
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+ - Create a generator that seeds profiles with random contexts from the aforementioned lists.
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+ - Apply default weights to each property type, for example a high weight for the type ssn, and low for twitter@.
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+
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+** Example request
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+
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+This sample application request consists of an application name, a set of required property types and a set of optional property types.
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+
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+#+name: request
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+#+BEGIN_SRC js :results output
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+ var request = {
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+ application : "decodeapp:facebook",
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+ required : ["decode:name", "decode:email", "decode:address"],
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+ optional : ["decode:phone"]
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+ }
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+ var data = JSON.stringify(request) + "\n";
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+ process.stdout.write(data);
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+#+END_SRC
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+
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+#+RESULTS: request
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+: {"application":"decodeapp:facebook","required":["decode:name","decode:email","decode:address"],"optional":["decode:phone"]}
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+
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+*** Things to further investigate
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+ - Create a generator that seeds a request with random required and optional property types
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+ - Add a 'sphere / context type' to each application. So tha
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+
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+* Data Comparison
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+During the interaction we want to give the user insight into a couple of things;
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+- How does the requested set of properties relate to the different contexts? How well does a context match to the request?
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+- What would it mean for the context if the request was accepted? How many / which properties would have to be added to the context in order to fulfill the request?
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+- What would it mean for the cumulative weight of the context?
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+
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+In below ruby code a comparison is made by on creating the intersection and its inverse between the request and each context.
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+
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+#+name: diff
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+#+BEGIN_SRC ruby :noweb yes :var profile_data=profile :var request_data=request :results value file
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+ require 'json'
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+ require 'nokogiri' #for creating xml
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+
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+ request = JSON.parse(request_data)
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+ profile = JSON.parse(profile_data)
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+
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+ context_diffs = []
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+ profile["contexts"].each do | context |
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+ requested = request["required"] + request["optional"]
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+ available = context["properties"].map {|p| p["type"]}
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+
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+ intersect = available & requested
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+ except = requested - available
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+ diff = {:context => context["title"], :intersect => intersect, :except => except}
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+
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+ context_diffs << diff
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+ end
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+
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+ <<xml>>
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+#+END_SRC
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+
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+#+RESULTS: diff
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+[[file:diff.xml]]
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+
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+*** Things to further investigate
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+ - Calculate the weight of each context before and after giving permission
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+
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+NOTE: We export to file diff.xml here for easy parsing in processing.js below.
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+
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+#+name: xml
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+#+BEGIN_SRC ruby :exports none
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+ # unfortunately processing.js doesn't support json yet, so we have to use xml
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+ doc = Nokogiri::XML::Builder.new do |xml|
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+ xml.result {
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+ xml.request {
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+ xml.application request["application"]
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+ xml.required {
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+ request["required"].each do |p| xml.property p end
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+ }
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+ xml.optional {
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+ request["optional"].each do |p| xml.property p end
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+ }
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+ }
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+ xml.diffs {
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+ context_diffs.each do |diff|
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+ xml.diff {
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+ xml.contextName diff[:context]
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+ xml.intersect {
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+ diff[:intersect].each do |p| xml.property p end
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+ }
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+ xml.except {
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+ diff[:except].each do |p| xml.property p end
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+ }
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+ }
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+ end
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+ }
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+ }
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+ end
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+ path = "diff.xml"
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+ File.write(path, doc.to_xml)
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+ path
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+ #+END_SRC
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+
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+/de relatieve grootte van de cirkel kan zijn op basis van hoeveel data je erin hebt.
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+personal is size 4, professional size 3
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+request is size 3
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+
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+* Visualization
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+
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+We want to visualize the following things;
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+- The request with the application name and it's size / quality (Who's asking what)
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+- The different contexts with it's name and size / quality relative to the request. (What would it mean to accept?)
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+
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+Per the design of Dyne, we want to use color to indicate the relation between the request and each context.
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+-
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+
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+#+name: glue
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+#+BEGIN_SRC processing :exports none
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+class Request
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+{
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+ public String application;
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+ public String[] required_properties;
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+ public String[] optional_properties;
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+
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+ public Request(String app, String[] req, String[] opt)
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+ {
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+ this.application = app;
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+ this.required_properties = req;
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+ this.optional_properties = opt;
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+ }
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+}
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+
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+class Diff
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+{
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+ public String context;
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+ public String[] intersect;
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+ public String[] except;
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+
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+ public Diff(String ctx, String[] intersect, String[] except)
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+ {
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+ this.context = ctx;
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+ this.intersect = intersect;
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+ this.except = except;
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+ }
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+}
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+
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+XMLElement doc = new XMLElement(this, 'diff.xml');
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+//create typed versions because this is java :-(
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+void parseRequest(xml)
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+{
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+ XMLElement req = xml.getChild(0);
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+ String name = req.getChild(0).getContent();
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+ String[] required = new String[req.getChild(1).getChildCount()];
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+ String[] optional = new String[req.getChild(2).getChildCount()];
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+
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+ for (int i = 0; i < required.length; i++) {
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+ required[i] = req.getChild(1).getChild(i).getContent();
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+ }
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+
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+ for (int i = 0; i < optional.length; i++) {
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+ optional[i] = req.getChild(2).getChild(i).getContent();
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+ }
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+
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+ Request r = new Request(name,required,optional);
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+ return r;
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+}
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+
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+//create typed versions because this is java :-(
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+void parseDiffs(xml)
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+{
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+ XMLElement diffsEl = xml.getChild(1);
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+ Diff[] diffs = new Diff[diffsEl.getChildCount()];
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+ for(int i = 0; i < diffs.length; i++)
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+ {
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+ String contextName = diffsEl.getChild(i).getChild(0).getContent();
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+ String[] intersects = new String[diffsEl.getChild(i).getChild(1).getChildCount()];
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+ String[] except = new String[diffsEl.getChild(i).getChild(2).getChildCount()];
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+
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+ for(int j = 0; j < intersects.length; j++)
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+ {
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+ intersects[j] = diffsEl.getChild(i).getChild(1).getChild(j).getContent();
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+ }
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+
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+ for(int j = 0; j < except.length; j++)
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+ {
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+ except[j] = diffsEl.getChild(i).getChild(2).getChild(j).getContent();
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+ }
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+
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+ Diff diff = new Diff(contextName,intersects,except);
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+ diffs[i] = diff;
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+ }
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+ return diffs;
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+}
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+#+END_SRC
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+
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+** Request
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+#+name: draw_request
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+#+BEGIN_SRC processing :noweb yes
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+<<glue>>
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+Request r = parseRequest(doc);
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+Diff[] d = parseDiffs(doc);
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+//set up font for labels
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+//PFont label_font = createFont("Arial",16,true);
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+//textFont(label_font,12);
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+
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+//draw the difference for each context with the request
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+size(200,200);
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+background(0);
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+noFill();
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+stroke(255);
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+ellipse(56, 46, 55, 55);
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+//fill(255);
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+text(r.application, 10, 10);
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+#+END_SRC
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+
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+#+RESULTS: draw_request
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+#+BEGIN_EXPORT html
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+<script src="processing.js"></script>
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+ <script type="text/processing" data-processing-target="ob-358673b6aca53ef65765ed4baecf23b8c3889682">
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+class Request
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+{
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+ public String application;
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+ public String[] required_properties;
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+ public String[] optional_properties;
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+
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+ public Request(String app, String[] req, String[] opt)
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+ {
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+ this.application = app;
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+ this.required_properties = req;
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+ this.optional_properties = opt;
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+ }
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+}
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+
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+class Diff
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+{
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+ public String context;
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+ public String[] intersect;
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+ public String[] except;
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+
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+ public Diff(String ctx, String[] intersect, String[] except)
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+ {
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+ this.context = ctx;
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+ this.intersect = intersect;
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+ this.except = except;
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+ }
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+}
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+
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+XMLElement doc = new XMLElement(this, 'diff.xml');
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+//create typed versions because this is java :-(
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+void parseRequest(xml)
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+{
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+ XMLElement req = xml.getChild(0);
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+ String name = req.getChild(0).getContent();
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+ String[] required = new String[req.getChild(1).getChildCount()];
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+ String[] optional = new String[req.getChild(2).getChildCount()];
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+
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+ for (int i = 0; i < required.length; i++) {
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+ required[i] = req.getChild(1).getChild(i).getContent();
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+ }
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+
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+ for (int i = 0; i < optional.length; i++) {
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+ optional[i] = req.getChild(2).getChild(i).getContent();
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+ }
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+
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+ Request r = new Request(name,required,optional);
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+ return r;
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+}
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+
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+//create typed versions because this is java :-(
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+void parseDiffs(xml)
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+{
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+ XMLElement diffsEl = xml.getChild(1);
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+ Diff[] diffs = new Diff[diffsEl.getChildCount()];
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+ for(int i = 0; i < diffs.length; i++)
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+ {
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+ String contextName = diffsEl.getChild(i).getChild(0).getContent();
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+ String[] intersects = new String[diffsEl.getChild(i).getChild(1).getChildCount()];
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+ String[] except = new String[diffsEl.getChild(i).getChild(2).getChildCount()];
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+
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+ for(int j = 0; j < intersects.length; j++)
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+ {
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+ intersects[j] = diffsEl.getChild(i).getChild(1).getChild(j).getContent();
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+ }
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+
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+ for(int j = 0; j < except.length; j++)
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+ {
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+ except[j] = diffsEl.getChild(i).getChild(2).getChild(j).getContent();
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+ }
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+
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+ Diff diff = new Diff(contextName,intersects,except);
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+ diffs[i] = diff;
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+ }
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+ return diffs;
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+}
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+Request r = parseRequest(doc);
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+Diff[] d = parseDiffs(doc);
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+//set up font for labels
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+//PFont label_font = createFont("Arial",16,true);
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+//textFont(label_font,12);
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|
364
|
+
|
|
365
|
+//draw the difference for each context with the request
|
|
366
|
+size(200,200);
|
|
367
|
+background(0);
|
|
368
|
+noFill();
|
|
369
|
+stroke(255);
|
|
370
|
+ellipse(56, 46, 55, 55);
|
|
371
|
+//fill(255);
|
|
372
|
+text(r.application, 10, 10);
|
|
373
|
+</script> <canvas id="ob-358673b6aca53ef65765ed4baecf23b8c3889682"></canvas>
|
|
374
|
+#+END_EXPORT
|
|
375
|
+
|
|
376
|
+** Contexts
|
|
377
|
+ How do we visulize each context? Intend to do this in processing too.
|
|
378
|
+#+name: draw_context
|
|
379
|
+#+BEGIN_SRC processing :noweb yes
|
|
380
|
+<<glue>>
|
|
381
|
+Request r = parseRequest(doc);
|
|
382
|
+Diff[] d = parseDiffs(doc);
|
|
383
|
+//set up font for labels
|
|
384
|
+//PFont label_font = createFont("Arial",16,true);
|
|
385
|
+//textFont(label_font,12);
|
|
386
|
+
|
|
387
|
+//draw the difference for each context with the request
|
|
388
|
+size(200,200);
|
|
389
|
+background(0);
|
|
390
|
+noFill();
|
|
391
|
+stroke(255);
|
|
392
|
+ellipse(56, 46, 55, 55);
|
|
393
|
+//fill(255);
|
|
394
|
+text(d[0].context, 10, 10);
|
|
395
|
+#+END_SRC
|
|
396
|
+
|
|
397
|
+#+RESULTS: draw_context
|
|
398
|
+#+BEGIN_EXPORT html
|
|
399
|
+<script src="processing.js"></script>
|
|
400
|
+ <script type="text/processing" data-processing-target="ob-efa176753d914243c7a44088a4a08201dd1f5913">
|
|
401
|
+class Request
|
|
402
|
+{
|
|
403
|
+ public String application;
|
|
404
|
+ public String[] required_properties;
|
|
405
|
+ public String[] optional_properties;
|
|
406
|
+
|
|
407
|
+ public Request(String app, String[] req, String[] opt)
|
|
408
|
+ {
|
|
409
|
+ this.application = app;
|
|
410
|
+ this.required_properties = req;
|
|
411
|
+ this.optional_properties = opt;
|
|
412
|
+ }
|
|
413
|
+}
|
|
414
|
+
|
|
415
|
+class Diff
|
|
416
|
+{
|
|
417
|
+ public String context;
|
|
418
|
+ public String[] intersect;
|
|
419
|
+ public String[] except;
|
|
420
|
+
|
|
421
|
+ public Diff(String ctx, String[] intersect, String[] except)
|
|
422
|
+ {
|
|
423
|
+ this.context = ctx;
|
|
424
|
+ this.intersect = intersect;
|
|
425
|
+ this.except = except;
|
|
426
|
+ }
|
|
427
|
+}
|
|
428
|
+
|
|
429
|
+XMLElement doc = new XMLElement(this, 'diff.xml');
|
|
430
|
+//create typed versions because this is java :-(
|
|
431
|
+void parseRequest(xml)
|
|
432
|
+{
|
|
433
|
+ XMLElement req = xml.getChild(0);
|
|
434
|
+ String name = req.getChild(0).getContent();
|
|
435
|
+ String[] required = new String[req.getChild(1).getChildCount()];
|
|
436
|
+ String[] optional = new String[req.getChild(2).getChildCount()];
|
|
437
|
+
|
|
438
|
+ for (int i = 0; i < required.length; i++) {
|
|
439
|
+ required[i] = req.getChild(1).getChild(i).getContent();
|
|
440
|
+ }
|
|
441
|
+
|
|
442
|
+ for (int i = 0; i < optional.length; i++) {
|
|
443
|
+ optional[i] = req.getChild(2).getChild(i).getContent();
|
|
444
|
+ }
|
|
445
|
+
|
|
446
|
+ Request r = new Request(name,required,optional);
|
|
447
|
+ return r;
|
|
448
|
+}
|
|
449
|
+
|
|
450
|
+//create typed versions because this is java :-(
|
|
451
|
+void parseDiffs(xml)
|
|
452
|
+{
|
|
453
|
+ XMLElement diffsEl = xml.getChild(1);
|
|
454
|
+ Diff[] diffs = new Diff[diffsEl.getChildCount()];
|
|
455
|
+ for(int i = 0; i < diffs.length; i++)
|
|
456
|
+ {
|
|
457
|
+ String contextName = diffsEl.getChild(i).getChild(0).getContent();
|
|
458
|
+ String[] intersects = new String[diffsEl.getChild(i).getChild(1).getChildCount()];
|
|
459
|
+ String[] except = new String[diffsEl.getChild(i).getChild(2).getChildCount()];
|
|
460
|
+
|
|
461
|
+ for(int j = 0; j < intersects.length; j++)
|
|
462
|
+ {
|
|
463
|
+ intersects[j] = diffsEl.getChild(i).getChild(1).getChild(j).getContent();
|
|
464
|
+ }
|
|
465
|
+
|
|
466
|
+ for(int j = 0; j < except.length; j++)
|
|
467
|
+ {
|
|
468
|
+ except[j] = diffsEl.getChild(i).getChild(2).getChild(j).getContent();
|
|
469
|
+ }
|
|
470
|
+
|
|
471
|
+ Diff diff = new Diff(contextName,intersects,except);
|
|
472
|
+ diffs[i] = diff;
|
|
473
|
+ }
|
|
474
|
+ return diffs;
|
|
475
|
+}
|
|
476
|
+Request r = parseRequest(doc);
|
|
477
|
+Diff[] d = parseDiffs(doc);
|
|
478
|
+//set up font for labels
|
|
479
|
+//PFont label_font = createFont("Arial",16,true);
|
|
480
|
+//textFont(label_font,12);
|
|
481
|
+
|
|
482
|
+//draw the difference for each context with the request
|
|
483
|
+size(200,200);
|
|
484
|
+background(0);
|
|
485
|
+noFill();
|
|
486
|
+stroke(255);
|
|
487
|
+ellipse(56, 46, 55, 55);
|
|
488
|
+//fill(255);
|
|
489
|
+text(d[0].context, 10, 10);
|
|
490
|
+</script> <canvas id="ob-efa176753d914243c7a44088a4a08201dd1f5913"></canvas>
|
|
491
|
+#+END_EXPORT
|
|
492
|
+
|
|
493
|
+*** Things to further investigate
|
|
494
|
+ - How do we show relation between request and each context with color?
|
|
495
|
+ - Can we use distance as well as color to indicate the relation?
|
|
496
|
+ - Can we use size of the circle to indicate the weight, or use badges?
|
|
497
|
+
|
|
498
|
+* Interaction
|
|
499
|
+We intend to investigate this in Processing as well.
|
|
500
|
+
|
|
501
|
+*** Things to further investigate
|
|
502
|
+ - How does the end user actually accept the request? Is it by dragging the request onto the context?
|
|
503
|
+ - How does the end user decline the request?
|