====== 2.1.4 Solution Stacks ======
[[dido:public:s_cli:05_contents:01_prt:02_basics:01_commondef:start| Return to Common Definitions]]

A [[dido:public:ra:xapend:xapend.a_glossary:s:solutionstack]] is an ordered collection of software that makes it possible to complete a particular task. Often a critical part of any stack is the [[dido:public:ra:xapend:xapend.a_glossary:p:platform|Platform]] the rest of the stack is built around. Some common platforms are

  * Application server Platform
  * Web Server Platform
  * Storage Platform
  * Virtualization Platform

Graphically, this is represented in Figure {{ref>OracleStack}} See: (( Oracle Corporation,
September 2010,
__Oracle Integrated Stack - Complete, Trusted Enterprise Solutions__,
Page 4,
Accessed 1 May 2021,
[[https://www.oracle.com/technetwork/server-storage/solaris10/documentation/integratedstacktesting-168417.pdf]]
)):

<figure OracleStack>
{{  dido:public:s_cli:05_contents:01_prt:02_basics:commondef:screen_shot_2021-05-01_at_11.54.14_am.png?400  |}}
<caption>[[dido:public:ra:xapend:xapend.a_glossary:o:oracle|Oracle's]] hardware and software stack.</caption>
</figure>



In this case we are particularly interested in building an idealized DIDO Stack with an idealized [[dido:public:ra:xapend:xapend.a_glossary:d:dido_platform|DIDO Platform]]. The idealized stack may not be completely accurate for all DIDOs, however, it provides a normative structure of what the pieces are in a DIDO Stack and in a DIDO Platform and how they are interrelated.

To accomplish this, a Database stack is presented with some idealized paths through the stack to met certain user scenarios. Then the DIDO Stack is presented as a transform of the Database Stack.


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