25
DIFFERENT ANSWERS TO DIFFERENT QUESTIONS
Chapter 1 established that there is an ever-increasing emphasis on the
necessity for agility and coherence in the development of an IT solu-
tion. The IT world has created several responses to this necessity. These
responses are aimed at accelerating the IT development process or at
improving the coordination between individual IT developments.
Acceleration of the development process is being sought in employing
new development methods or in implementing standard packages,
while improving coordination between developments is being sought
in development under architectural guidance.
INCREASING AGILITY:
NEW DEVELOPMENT METHODS
To increase the speed at which applications are constructed, several
new IT development methods have been created such as DSDM
(Dynamic Systems Development Method) and XP (eXtreme Program-
ming). These new methods set aside the many and often complex prin-
ciples used by the more traditional approach and replace them with
fewer and less-complicated principles.
An important aspect of DSDM is the time-box principle. Time-boxing
is based on the precept that a definite and unchangeable deadline is set
for a project and within this deadline a certain goal must be achieved.
Irrespective of what happens during the course of the project, the dead-
line remains unchanged. If the deadline is endangered in any way, it will
not be postponed, but certain aspects of the functionality will be sacri-
Strategic
Dialogue
Development
with
Architecture
Architectural
Services
New
developments
IT Solutions
Development
without
Architecture
IT Solutions
Dynamic Architecture
Business
Architecture
Information
Architecture
Technical
Architecture
Governance
DYA
Processes
c02_wagter.qxd 12/10/04 12:18 PM Page 25
Summary :
If the deadline is endangered in any way, it will not be postponed, but certain aspects of the functionality will be sacri- Strategic Dialogue Development with Architecture Architectural Services New developments IT Solutions Development without Architecture IT Solutions Dynamic Architecture Business Architecture Information Architecture Technical Architecture Governance DYA Processes c02_wagter.qxd 12/10/04 12:18 PM Page 25
Tags :
architecture,new,methods,deelopments,deadline,agility,coordination,between,dynamic,different,project,certain,seeral