1 / 10

SURF

SURF. Achieving Quality through software reuse. IFIP 98 - IS:Current Issues and Future Changes Helsinki, Finland, December 10-13, 1998. A Process Improvement Experiment in IBM Italy Funded by the European Commission within the European Systems and Software Initiative. New Technologies.

zeph-hill
Download Presentation

SURF

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. SURF Achieving Quality through software reuse IFIP 98 - IS:Current Issues and Future Changes Helsinki, Finland, December 10-13, 1998 A Process Improvement Experiment in IBM Italy Funded by the European Commission within the European Systems and Software Initiative SURF - ESSI PIE 23752 - 1 of 10

  2. New Technologies Catch Business Opportunities New Functionality A SMALL TEAM System Integration-Embedded MultimediaSpeech Reco Data transmission-Security Experiment Scenario OUR CHALLENGES MA&ISD: 70 people Software: 15 people OUR PRODUCTS SURF - ESSI PIE 23752 - 2 of 10

  3. Objectives Quality (Process and Product) is a strategic key to: • Increase Productivity-Reduce Time To Market - Reduce Maintenance Efforts • Increase Flexibility- Manage peaks of activity - Catch Business Opportunities A reuse-oriented approachis the baseline for this experiment SURF - ESSI PIE 23752 - 3 of 10

  4. Road map Constraints:- Few domain-based reuse opportunities - Need for geographically distributed development capabilities - Component-based reuse alone is not enough Basic Assumptions: - Holistic Approach - Gradual introduction of changes - Selected Tools (CMS, Repository, Metrics) Experiment Steps: - Define Metrics (at Process and Product level) - Adapt the process (improve IPD and get ISO9000 certif.) - Adapt the Product Architecture SURF - ESSI PIE 23752 - 4 of 10

  5. Any C/C++ .DLL CORBA IDL COM DCOM JNI C++ SERVICES LAYER (compound functionality) C++ C++ C++ CONTROLS LAYER (base functionality) ASM, C, C++ HARDWARE LAYER (Low level API) Fade to Grey Java Java C++ VCC Vbas APPLICATIONS LAYER (RAD) “A software architecturebased on a layered structure designed to decrease complexity andto enable reuse at different levels of detail” COMPONENTS LAYER (building blocks) SURF - ESSI PIE 23752 - 5 of 10

  6. RAD DEVELOPER COMPONENT DEVELOPER OO DEVELOPER DOMAIN EXPERT ASSEMBLER GURU Strategic Changes Developer’s roles - Specific skills enhancement (ASM,C,OO,RAD) - “for” and “with” reuse by layer • Documentation • UML as description language • HTML as base format • Describes layers interfaces • Product Metrics support • Reusability metrics based on FCM • Integrated in the documentation SURF - ESSI PIE 23752 - 6 of 10

  7. At process... …and Product level... Main Achievements Conventional metrics show a general improvement... SURF - ESSI PIE 23752 - 7 of 10

  8. Main Achievements (continued) But a deeper analysis shows new opportunities... A great reduction of the application’s complexity(from “out of control” to “well understood”) A great (human) resource interchange ability(from “very critical” to “quite easy”) A great improvement in documentation(from “free” to “structured and standardised”) A great capability to retarget applications by reusing(from “not possible” to “one-day solutions”) SURF - ESSI PIE 23752 - 8 of 10

  9. Key Lessons Quality improvement needs a sound cultural background in OO and SE principles. Don’t underestimate the human factor: strong commitment and attitude to teamwork are fundamental. Reuse metrics are very critical: try to simplify and make an endless tuning on your metric system. Tools (repository, metrics, case, etc) are fundamental, but are not free and must be continuously maintained SURF - ESSI PIE 23752 - 9 of 10

  10. Future Actions Software Quality improvement is an endless process Next steps will be: Better Integration between CMS, Repository and Metrics Improvement of SW documentation management by mean of a WMS (Workflow Management System) Continuous improvement of the layered architecture Continuous tuning of the Product metrics system Improvement of the Process metrics system SURF - ESSI PIE 23752 - 10 of 10

More Related