To evaluate whether the data base solution is acceptable
and whether the project should proceed, management will require
certain information, namely:
- The costs associated with the proposed solution. This
includes development costs as well as additional expenses.
- The remaining project phases and activities, including
sequencing.
- The human resources required to complete the work.
- The delivery schedule for the project.
- A Cost and Evaluation Summary which provides an
economic assessment of the venture.
WHO SHOULD PARTICIPATE?
Although Project Management and Data Engineering are
primarily responsible for performing the Data Base Evaluation,
they are assisted by many of the same functions participating
in the Data Base Approach. This includes representatives from
Systems Engineering, Software Engineering, Data Communications,
Data Base Administration, and DP Operations. These other
functions advise Project Management on matters related to
estimates and other project related expenses. They also
review project delivery schedules to evaluate viability.
This type of group participation enhances communications
and cooperation between development functions and helps to
establish realistic project estimates and schedules.
USE OF THE ROUGH DESIGN
The rough design prepared in the previous activity becomes
the basis for evaluating the data base solution and project
during this activity. As such, it becomes the "roadmap" for
determining project plans, estimates and schedules. Even if
the data base solution requires the implementation of a
commercial software package, the rough design is used to
establish a "make versus buy" comparative analysis.
PROJECT PLANNING
The Project Plan is used to establish:
- The phases and activities required to complete the
project, along with its path.
- The human resources required to perform the work,
whether known or unknown.
Before a project estimate and schedule can be calculated,
the path of the project must first be defined. Under DBEM,
the project path is ultimately based on the project scope;
whether it is fulfilling an ISEM related application, or EEM
related requirements:
PHASE NAME ISEM RELATED EEM RELATED
1 Data Base Study & Evaluation X X
2 ALDBM Design X
3 ELDBM Design X X
4 EPDBM Design X
5 APDBM Design X
6 DBEM Evaluation X X
Even if a commercial software package has been selected as
part of the data base solution, it must be documented in the IRM
and merged with the other corporate information resources for
control purposes. As such, the same ISEM related phases will
have to be performed. The only difference is that the physical
design phases become more DOCUMENTATION oriented as opposed to
DESIGN related.
SELECTING HUMAN RESOURCES
Following the rough design and the project plan,
consideration must be given to the types of human resources
required to implement the project. Based on the type of
application being developed, Project Management considers the
types of Data Engineers, Data Base Administrators, and Data
Communications Administrators required to work on the project,
including the skills and proficiencies needed to perform the
work. Based on this analysis, Project Management has four
options:
- Use in-house personnel.
- Recruit additional personnel.
- Use outside personnel (contractors).
- Combinations of the above.
In all instances, the use of human resources is based on
their qualifications, their availability, and their cost.
Project Management, therefore, must balance these variables when
selecting personnel. There may be trade-offs to consider; for
example:
- One person may be more expensive than others but can
deliver the work faster.
- A senior person could perform the work in fewer hours
than a junior person, but is committed to other project
assignments. Consequently, the senior person cannot
devote sufficient time to the project. Whereas the junior
person may have fewer conflicts and is more available
for project work.
PROJECT ESTIMATING & SCHEDULING
After the path of the project has been determined, an
Order-of-Magnitude (OOM) estimate and schedule can be
calculated. This is an estimate and schedule of the amount
of effort required to perform the remaining phases in the
project. The estimate, thereby, is an expression of labor
charges.
The use of human resources has a significant impact on the
OOM estimate. If the project participants for the remainder of
the project are known, then their specific skills and
proficiencies are taken into consideration when preparing the
estimate. In fact, they should participate in the development
of the estimate. However, if the project personnel are unknown,
Project Management considers the type of human resources
required and uses an average proficiency rating when preparing
the estimate. One outcome from this is Project Management may
identify what additional resources need to be recruited, either
internally or externally (e.g., hiring new people, and using
consultants). It may also highlight the need for additional
training to develop the required skills and proficiencies.
Based on the Direct hour estimate, project costs may be
calculated. A cost for each phase is prepared with a total
project cost summed by phases.
In addition to labor costs, Project Management must
consider supplemental project expenditures. This is where
consideration is given to the acquisition of equipment,
software (such as a commercial DBMS and data dictionary),
training, or any other pertinent expense. This is an area
where other project functions such as DP Operations, Data Base
Administration, and Data Communications can provide input.
The Direct hour estimate is also used to calculate the
project schedule. Again, if the project personnel are known,
their commitments and effectiveness rates are taken into
consideration when preparing the schedule. If the resources
are unknown, a standard effectiveness rate should be used.
A "Project Estimate/Schedule Recap" is prepared which
contains both the Order-of-Magnitude Estimate and Schedule.
COST/BENEFIT ANALYSIS
The purpose of a Cost/Benefit Analysis is to perform an
economic impact analysis on the data base and the project.
Prior to performing this, Project Management has prepared an
Order-of-Magnitude estimate to complete the project, along with
any additional planned expenditures (such as for additional
hardware/software acquisitions).
"PRIDE" provides a worksheet to assist in the preparation
of the Cost/Benefit Analysis. However, in-house standards
should be observed when performing the analysis.
During the analysis Project Management must consider how
the proposed data base solution will affect the company:
- Will it increase or reduce staffing?
- Will it increase or reduce equipment resources?
- What will be the annual savings and expenses of the data
base as it compares to the existing environment?
- What will be the one-time savings and expenses of the project
as it applies to the existing environment?
- What will be the intangible benefits of the data base?
- What is the investment evaluation? For example, what will
be the Break Even Point of the project? What will be the
Return On Investment (ROI)?
COST AND EVALUATION SUMMARY
The Cost/Benefit Analysis becomes the basis for preparing
a Cost and Evaluation Summary. This is a textual justification
for the project which summarizes the economic conditions for
performing the project and implementing the proposed data base
solution. The main objective of the Cost and Evaluation
Summary is to demonstrate that the data base approach is a
cost-effective solution for satisfying the business information
requirements. It must also highlight why the approach was
selected over other alternatives.
PREPARING FOR REVIEW
Project Management and Data Engineering assures that
all of the Phase 1 activities and materials have been properly
completed. A Phase Review Checklist is available for this
purpose. A formal Phase 1, "Data Base Study & Evaluation
Report" is then prepared. The manual is reviewed and checked
by Quality Assurance prior to distribution to management for
review.
The Phase 1 Manual contains the following items:
- Phase Cover Page - including a Table of Contents,
along with a distribution/approval list.
- Project Scope - as prepared in Activity A and
confirmed in Activity D.
- Current Data Base Analysis - as prepared in
Activity B.
- Information Requirements - as prepared during
Activity C and confirmed in Activity D.
- Information Requirements/Objects Matrix - as
prepared during Activity C and confirmed in Activity D.
- Data Base Concept Diagram - as prepared during
Activity E.
- Data Base Approach - as prepared during
Activity E.
- Project Plan - as prepared in this activity.
- Project Estimate/Schedule Recap - as prepared in
this activity.
- Cost and Evaluation Summary - as prepared in this
activity.
- Phase Review Checklist - specifying acceptance
criteria for the deliverables mentioned above.