Semantic-based representation,
enrichment and computation of
product breakdown structures
Jose María Alvarez-Rodríguez, Juan Llorens, Manuela Alejandres and Jose Fuentes
INCOSE IS 2015, Seattle, US
Can we see/manage something in different forms?
What is first?
EBOM
PBS-What?
OBS-Who?
WBS-How?
CBS-How much?
...
x Breakdown Structures
Underlying structures for...
Systems of Systems
Systems of Interest
(SOI)
The
Product Breakdown Structure
(PBS)
A motorbike PBS...
A structure...
...an underlying graph.
...and...
Needs and Challenges
- A common representation model
- Interoperability
- KPIs for each subsystem/component
-
Validation (data & structure)
- Bottom-up. E.g. Weight, MTBF?
- Computation
- ...
View or profile over the same structure
Characterization of a
PBS
1-Hierarchical structure
Vocabulary & Conceptual Model
2-Dynamic structure
- New subsystems and components can be added
- Observations are dynamically generated
-
Validation is required
- Checking consistency
- Data integrity
- Different views of the same structure (relationship-based)
- ...
3-OSLC Resource
OSLC Knowledge Management
OSLC KPIs
OSLC Overview
Situating contributions
OSLC KPIs
- Observations are linked to any PBS item.
- Based on the W3C RDF Data Cube Vocabulary
PBSItem
observations
OSLC KPIs (spec.)
Implementation
Vocabulary
& Conceptual Model
Knowledge Manager by
The REUSE Company
Validation
and
Computation
RDF-data validation
(existing approaches)
On-ongoing effort W3C SHACL (Sept. 2014)
(Shapes Constraint Language)
RDF-data validation
Advanced checkings
Evaluation
- Compare traditional vs Semantic PBS
- Apply a multi-criteria technique
- Establish a ranking
Traditional
vs
Semantic
PBS
AHP
(Analytical Hierarchy Process)
Criteria
- PBS as a Service
- Use of the Service Measurement Index (v2.0)
Results
Conclusions
- The PBS is one of the basic structures for any product development
-
Valuable data and information
- Static and Dynamic
- Different views on the same data
- Need of validation and computation
- Data consistency and integrity
- Advanced checking
- ...
Future Work
- PBS as a resource that can be fully exchanged
- Reactive and continuous validation of PBS data
- Quality assurance
- Alignment to new specifications E.g. SHACL
- Merging with existing PBS management tools
- ...
Speakers
-
Dr. Jose María Alvarez-Rodríguez
- Carlos III University of Madrid, Spain
- Member of INCOSE and the OSLC RM working group
- E-mail: josemaria.alvarez@uc3m.es
- WWW:
-
Prof. Dr. Juan Llorens
- Carlos III University of Madrid, Spain
- Member of INCOSE
- CTO of The Reuse Company Inc.
- E-mail: llorens@kr.inf.uc3m.es
- WWW:
PBS-INCOSE-2015
By Jose María Alvarez
