| |
The Systems Analysis and Design Phase will
commence after the feasibility of the request has been confirmed.
In brief, the objectives of this phase are to
(a) investigate and understand
the operation of the existing systems;
(b) specify and design the
new system; and
(c) detail the implementation
requirements of the computerised solution.
The findings and recommendations
should be documented in a System Analysis and Design (SA&D)
report, which comprises two parts - Management Summary and Technical Specification with the
following coverage:
SA&D
Management Summary
| A. |
Approval Sought |
Highlight
the major recommendations of the SA&D Study |
| B. |
System Objectives |
State
study objectives and intended usage of the proposed system |
| C. |
Background |
Describe
background picture and other relevant information of the
proposed system. |
| D. |
Present Situation |
Describe
the current operations, environment and functions of the
system under study. |
| E. |
Problem / Improvement Areas |
Describe
problems encountered or anticipated and improvement areas
identified. |
| F. |
Proposed System |
Describe
in sufficient details the proposed system and define the
scope of the subsequent implemented system. |
| G. |
Resource Implications |
Estimate
with sufficient details the resources requirements and
other implications of the proposed system. |
| H. |
Costs |
Estimate
with sufficient details the non-recurrent and recurrent
costs of the proposed system. |
| I. |
Benefits |
Estimate
tangible and intangible benefits of the proposed system. Realisable benefits, such as reduction in expenditures,
increases in revenue, and staff savings resulting from
deletion of posts, should be expressed in financial terms. Where notional or intangible benefits are quoted, the
study should include appropriate productivity and performance
indicators for measuring these improvements subsequently. |
| J. |
Cost-benefits Analysis |
Evaluate
the cost effectiveness of the proposed system with indications
of the funding requirements and timing for realisation
of the identified benefits. |
| K. |
Implementation Plan |
State
the system constraints and inherent risks, suggest the
most appropriate implementation approach and schedule
an implementation plan. |
| L. |
Recommendations |
Make study
recommendations and propose the way forward. |
SA&D Technical
Specification 
| 1. |
Current Environment Description |
- Describe current operations and environment;
- Describe current functions and data
|
| 2. |
Business Activity Model |
-
Specify the system
business with respect to business perspectives,
business activities, business events and business
rules
|
| 3. |
User Requirements |
-
Specify the user
requirements with respect to the functions, data,
workload and the audit/control/security aspects
|
| 4. |
System Specifications |
-
Specify the processing
requirements with respect to the online functions,
batch functions, data model and system input/output
|
| 5. |
Technical System Option |
Specify design objectives (e.g. performance,
fallback, storage, etc) as applicable; Specify the hardware and software
strategy and estimate the requirements (supported
by the sizing model); Suggest the implementation approach
and give implementation schedule with cost and resource
implications (substantiated by Function Point calculation,
etc); Explain the effects
of the proposed system on the user environment
|
|
|