Evaluation of Repository

Candidates

• ModelBus
• CDO

Requirements

ID	Name
R1	EMF-based XMI supported
R2	Team Provider Interface
R3	Versioning
R4	Interactive Modeling
R5	Logging
R6	Actively Supported
R7	Source Code Available
R8	Open Source License
R9	Usable for free
R10	Customizable Workflow
R11	Integration Graphical Editor
R12	Integration EA

R1 EMF-based XMI supported

Property	Value
ID	1
Name	EMF-based XMI supported
Category	Functional
Description	The repository shall be model-oriented and able to detect and version changes in EMF-based models that are seraliazed in XMI
Reason	EMF-based XMI serializations of models are commonly used in Eclipse
Critical	high
Related

R2 Team Provider Interface

Property	Value
ID	2
Name	Team Provider Interface
Category	Functional
Description	The team provider interface is the integration mechanism of a repository in Eclipse. The repository shall be integrated seamlessly in Eclipse, which makes it usable for custom implementations as well.
Reason	Seamless integration into Eclipse, common approach for using it during development
Critical	medium
Related

R3 Versioning

Property	Value
ID	3
Name	Versioning
Category	Functional
Description	Versioning tracks all versions of committed files
Reason	Reverting is resolution strategy for conflicts
Critical	high
Related

R4 Interactive Modeling

Property	Value
ID	4
Name	Interactive Modeling
Category	Functional
Description	Interactive Modeling becomes possible by a notification mechanism for fine-grained changes. Often, an adapter for a popular editor is available.
Reason	Reduces implementation effort for collaborative editor
Critical	medium
Related	11,12

R5 Logging

Property	Value
ID	5
Name	Logging
Category	Maintenance
Description	The log files are relevant for tracking down issues. The logging should contain relevant information. The verbosity should be selectable.
Reason	Log files allow tracking down issues
Critical	high
Related	6

R6 Actively Supported

Property	Value
ID	6
Name	Actively Supported
Category	Maintenance
Description	The vendors shall still actively maintain the tool. This includes answering questions and fixing bugs.
Reason	Found issues are resolved by developers
Critical	medium
Related	5

R7 Source Code Available

Property	Value
ID	7
Name	Source Code Available
Category	Maintenance
Description	The source code shall be available in a public repository or on request
Reason	Found issues can be fixed by ourselves
Critical	medium
Related	8

R8 Open Source License

Property	Value
ID	8
Name	Open Source License
Category	Legal
Description	The open source license shall include the rights to adjust the software and ship the changed software.
Reason	The open source license allows adjusting the source code to our needs if necessary
Critical	medium
Related	7

R9 Usable for free

Property	Value
ID	9
Name	Usable for free
Category	Legal
Description	Solution shall be usable for free in private and professional environments
Reason	Our core solution shall be available freely
Critical	high
Related

R10 Customizable Workflow

Property	Value
ID	10
Name	Customizable Workflow
Category	Functional
Description	The repository has an internal workflow when changes arrive. This workflow should be customizable to include custom transformations before or after storing the changes in the repository.
Reason	Integration transformations into the repository reduces effort of client or dedicated server
Critical	low
Related

R11 Integration Graphical Editor

Property	Value
ID	11
Name	Integration Graphical Editor
Category	Functional
Description	A graphical editor can make use of the repository. This includes commits, conflict resolution, and interactive editing if available.
Reason	Saved effort for integrating the graphical editor if we choose this one
Critical	optional
Related	4

R12 Integration EA

Property	Value
ID	12
Name	Integration EA
Category	Functional
Description	There is an extension for Enterprise Architect that allows importing/exporting models from/to the repository. Ideally, interactive modeling is also available.
Reason	Saved effort for integrating Enterprise Architect
Critical	optional
Related	4

Evaluation Results

CDO

ID	Name	Met?	Source	Comment
1	EMF-based XMI supported	full	Empirical, Reference
2	Team Provider Interface	full	Empirical, Reference
3	Versioning	full	Empirical, Reference
4	Interactive Modeling	full	Empirical, Reference	Actively maintained, in development
5	Logging
6	Actively Supported	full	Reference	Reported bugs fixed fast
7	Source Code Available	full	Reference
8	Open Source License	full	Reference	EPL 1.0
9	Usable for free	full
10	Customizable Workflow	no
11	Integration Graphical Editor	full	Reference
12	Integration EA	no

Choice