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dido:public:ra:1.4_req:2_nonfunc:28_manageability:06_system [2021/08/09 14:49] murphy |
dido:public:ra:1.4_req:2_nonfunc:28_manageability:06_system [2022/01/22 16:24] (current) 50.19.247.197 ↷ Links adapted because of a move operation |
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| //"Studies have shown the average software program lifespan over the last 20 years to be around 6-8 years. Longevity increases somewhat for larger programs, so for extremely large complex programs (i.e., over a million Lines of Code – LOC) the average climbs as high as 12-14 years."//((__Software Evolution__, Blog Post, Mitopia Technologies, [[https://mitosystems.com/software-evolution/]] | //"Studies have shown the average software program lifespan over the last 20 years to be around 6-8 years. Longevity increases somewhat for larger programs, so for extremely large complex programs (i.e., over a million Lines of Code – LOC) the average climbs as high as 12-14 years."//((__Software Evolution__, Blog Post, Mitopia Technologies, [[https://mitosystems.com/software-evolution/]] | ||
| - | )) Obviously, there is not just the lifespan of the target system, but there are independent lifespans for each version for each subsystem, module or component that is developed externally. For example, the Windows [[dido:public:ra:xapend:xapend.a_glossary:o:os]] first appeared in the mid 1980s with version 1.0.(( | + | )) Obviously, there is not just the lifespan of the target system, but there are independent lifespans for each version for each subsystem, [[dido:public:ra:xapend:xapend.a_glossary:m:module|module]] or component that is developed externally. For example, the Windows [[dido:public:ra:xapend:xapend.a_glossary:o:os]] first appeared in the mid 1980s with version 1.0.(( |
| __The History of Windows Operating Systems__, Vengie Beal, Webopedia, 2 Sugust 2018, Accessed 16 July 2020, [[https://www.webopedia.com/DidYouKnow/Hardware_Software/history_of_microsoft_windows_operating_system.html#windows-1]] | __The History of Windows Operating Systems__, Vengie Beal, Webopedia, 2 Sugust 2018, Accessed 16 July 2020, [[https://www.webopedia.com/DidYouKnow/Hardware_Software/history_of_microsoft_windows_operating_system.html#windows-1]] | ||
| )) and the current version is 10. About every 10 years, Microsoft release another major release of Windows. (( | )) and the current version is 10. About every 10 years, Microsoft release another major release of Windows. (( | ||
| __When will Microsoft end support for your version of Windows or Office?__, Ed Bott, 10 April 2018, ZDNet, Accessed 16 July 2020, [[https://www.zdnet.com/article/when-will-microsoft-pull-the-plug-on-your-version-of-windows-or-office/]] | __When will Microsoft end support for your version of Windows or Office?__, Ed Bott, 10 April 2018, ZDNet, Accessed 16 July 2020, [[https://www.zdnet.com/article/when-will-microsoft-pull-the-plug-on-your-version-of-windows-or-office/]] | ||
| - | )). IPV4 was originally available in 1883. Windows 7 was release in October 2009 and IPV4 was the dominate [[dido:public:ra:xapend:xapend.a_glossary:i:ip]]. By 2012, IPV6 gained dominance(( | + | )). [[dido:public:ra:xapend:xapend.b_stds:tech:ietf:ipv4 | IPV4]] was originally available in 1883. Windows 7 was release in October 2009 and IPV4 was the dominate [[dido:public:ra:xapend:xapend.a_glossary:i:ip]]. By 2012, IPV6 gained dominance(( |
| - | __Six Years Since World Launch, IPv6 Now Dominant Internet Protocol for Many__, Internet Society, 6 June 2018, Accessed 16 July 2020, [[https://www.internetsociety.org/news/press-releases/2018/six-years-since-world-launch-ipv6-now-dominant-internet-protocol-for-many/]] | + | __Six Years Since World Launch, [[dido:public:ra:xapend:xapend.b_stds:tech:ietf:ipv6 | IPv6]] Now Dominant Internet Protocol for Many__, Internet Society, 6 June 2018, Accessed 16 July 2020, [[https://www.internetsociety.org/news/press-releases/2018/six-years-since-world-launch-ipv6-now-dominant-internet-protocol-for-many/]] |
| )). Therefore, if your system was released in 20010 using IPV4 and Windows 7, by 2012 the network protocol needed to be upgraded which can have cascading maintenance effects throughout your system. By 2015, Windows 10 was released again having a cascading effect on upgrades. | )). Therefore, if your system was released in 20010 using IPV4 and Windows 7, by 2012 the network protocol needed to be upgraded which can have cascading maintenance effects throughout your system. By 2015, Windows 10 was released again having a cascading effect on upgrades. | ||
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| </caption> | </caption> | ||
| </figure> | </figure> | ||
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| + | : **Note:** Also see [[dido:public:ra:1.2_views:3_taxonomic:4_data_tax:02_state_taxonomy:data_in_motion]] for a further discussion of the DIDO Layers. | ||