Information Technology Reference
In-Depth Information
The current maturity levels of the Technology and Business axis, as shown in the
figure above, have been established based on the professional experience and State-
of-the-Art studies [
15] [16] [17] [18
] from the authors. Nevertheless, the maturity levels
will be accordingly updated with new achievements.
These maturity values represented in each axis have the following meanings:
Technology axis
•
(0,0) Monolithic: interface logic, business logic, and data logic are in the same
machine.
•
(0,0.5) Client-server with a thick client (i.e. VB application), event driven. Code
tightly coupled to the interface. DB is in the local network or on a server outside
but all the logic remains in the same machine.
•
(0,1) Client-server with a thin client (i.e. j2EE application, 2-n tier), with no usage
of web services. Multiple DB instances.
•
(0,2) Client-server with a thin client such as mozilla, opera, chrome or Internet
explorer (i.e. J2EE application, 2-n tier), with usage of web services. A unique
instance of the DB. Multiple instances of the application.
•
(0,3) Client-server with a thin client, 1 DB instance, 1 DB application, n
appearance customizations.
Business axis
•
(0,0) License (instalment), support, updates, upgrades, maintenance are paid under
a different fee model than the license. No helpdesk. No SLA. No upgrade protocol
and procedures.
•
(0,0.5) Most revenues are obtained from sales of licenses. Even though, there exist
some sales (less than 10% of the total amount) that are made in a service form with
a flat rate model.
(1,0) Most revenues are obtained from sales of licenses. Between 10-20% are from
the product sale as service with pay per use, flat rate, hybrid pricing models. SLA
is being defined. Upgrade protocol and procedures are being defined.
•
•
(2,0) More than 60% of the sales are from the product as a service. Helpdesk is
institutionalized but not 24x7 and only in certain languages. Existence of SLA,
upgrade protocol but upgrades are still seldom, legal department.
•
(3,0) 100% of the sales are from the product as a service. Existence of a 24x7
helpdesk, multilingual, Marketing mostly done through the Internet (social media),
SLA, upgrade protocol and procedures, Long Tail business model.
B. Technical Feasibility Analysis
A possible way to discern whether the migration is possible or not, is a feasibility
analysis. Existing migration methods to SOA like SEI's SMART [5] propose doing it
mainly by means of questionnaires or interviews to key people leaving aside the use
of supporting tools.
