Editing OpenAccess

{{about|[[electronic design automation]]|other uses|Open access (disambiguation)}}
{{more citations needed|date=November 2014}}
'''OpenAccess''' is a proprietary API controlled by the OpenAccess Coalition<ref>{{Cite news|url=http://www.si2.org/2018/04/13/what-is-open-about-openaccess/|title=What is Open about Si2 OpenAccess? {{!}} Silicon Integration Initiative|date=2018-04-13|work=www.si2.org|access-date=2018-05-25|language=en-US}}</ref> that aims to facilitate [[Interoperability]] of [[electronic design automation]] software among the members of that coalition.

==OpenAccess Coalition==
OpenAccess Coalition is a coalition amongst [[integrated circuit]] manufacturers to provide a standard for designing integrated circuit chips.<ref>{{cite book|title=The Ten Commandments for Effective Standards: Practical Insights for Creating Technical Standard|first1=Karen|last1=Bartleson|first2=Rick|last2=Jamison|publisher=Happy About|year=2010|page=53|isbn=978-1-617-30000-4}}</ref> The OpenAccess Coalition is an organization of semiconductor industry companies claiming to be competition-neutral that are leading this effort operating under [[Silicon Integration Initiative]] bylaws.<ref name=qed>[https://ieeexplore.ieee.org/document/1194732/ Assessment of the OpenAccess Standard: insights on the new EDA industry standard from Hewlett-Packard, a Beta partner and contributing developer], ''Fourth International Symposium on Quality Electronic Design'', 2003, pp. 203-207</ref>

The OpenAccess Coalition consists both of [[Electronic design automation|EDA]] user companies (IC designers and manufacturers) and EDA provider companies, including [[Advanced Micro Devices]], [[Agile Analog]], [[AnaGlobe Technology]], [[Analog Rails]], [[ANSYS]], [[AWR/National Instruments Corporation]], [[Blue Cheetah Analog Design]], [[Cadence Design Systems]], [[Chengdu Higon IC Design]], [[CST - Computer Simulation Technology]], [[DXCorr Design]], [[Empyrean Software]], [[Entasys Design]], [[Fractal Technologies]], [[GLOBALFOUNDRIES]], [[Google]], [[Hewlett Packard Enterprise]], [[IBM]], [[Intel]], [[INTENTO DESIGN]], [[Invecas]], [[Jedat]], [[Keysight Technologies]], [[Lattice Semiconductor]], Life Technologies, [[Luceda]], [[MediaTek]], [[Mentor Graphics]], [[Mythic (AI company)|Mythic]], [[NVMEngines]], [[PDF Solutions]], [[Pulsic]], [[Qualcomm]], [[Samsung Electronics]], [[Savarti]], [[Silvaco]], [[Synopsys]], [[Taiwan Semiconductor Manufacturing Company Limited]], [[Zuken]].<ref>{{ cite web | url=https://projects.si2.org/oac_members_list.php | title=OpenAccess Coalition Members | website=SI2.org | access-date=30 August 2019 }}</ref>

==OpenAccess software==
OpenAccess consists of a data API of which the source code is available only to coalition members.<ref>[https://projects.si2.org/openeda.si2.org/projects/oarefimp New Open Access source code policy, 2016]</ref><ref name=about/>

The OpenAccess API is a C++ program interface to IC design data stored in an electronic design database, with an architecture designed to ensure easy integration of contributions from various companies which may implement database enhancements or add proprietary extensions. It also includes the reference database supporting that [[application programming interface|API]] for [[integrated circuit|IC]] design in multiple [[programming language]]s: [[C++]], [[C Sharp (programming language)|C#]], [[Perl]], [[Python (programming language)|Python]], [[Ruby (programming language)|Ruby]] and [[Tcl]].

In the past, electronic design flows were a combinations of proprietary applications and copyrighted [[EDA database]]s, with many different file formats and syntaxes.<ref name=mde>''EDA for IC Implementation, Circuit Design, and Process Technology'', 2005, {{ISBN|1420007955}}, section [https://books.google.com/books?id=EWM7nhOr86MC&pg=SA12-PA3 "Modern Database Examples"]</ref><ref name="qed" /> As a result, significant efforts were required from IC CAD engineers to integrate them for particular projects. The resulting flows were often fragile, inefficient and therefore result in longer design cycles. OpenAccess effort is therefore attempting to create a standardized design flow among its participants.<ref name="about">[http://www.si2.org/?page=69 What is OpenAccess?]</ref>

===Development history===
The OpenAccess coalition was formed in Q4 1999. The members issued a request-for-technology for existing technology, looking for a solution that was proven and would be commercially adopted, and that supported a broad set of EDA tools. As a result, the [[Cadence Design Systems|Cadence]] Genesis database and API was selected and now forms the technology base for OpenAccess.

In 2005 the Cadence Berkeley Labs and the Silicon Integration Initiative launched the OpenAccesGear, a project to develop [[open source]] utilities on top of the OpenAccess database. Participants included [[University of California at Berkeley]], [[UCLA]] and [[University of California, Santa Cruz|UCSC]].<ref>[http://www.eetimes.com/document.asp?doc_id=1152402 "Open-source project looks to ignite EDA research"]  ''[[EE Times]]''</ref> The OAGear project was subsequently suspended. [[Silicon Integration Initiative|Si2]] has offered OAGear<ref>[https://projects.si2.org/openeda.si2.org/projects/oagear OA Gear]</ref> as an unsupported project.

==References==
{{reflist}}

==External links==
*[http://www.si2.org/ Silicon Integration Initiative], the custodian of OpenAccess
**[http://www.si2.org/?page=69 OpenAccess Overview]
**[http://www.si2.org/openeda.Si2.org/Licenses/#lic_table Licenses]
**[http://www.si2.org/?page=76 OpenAccess FAQ]
**[https://si2.org/oa-tools-utils-libs/ Downloads]
**[http://www.si2.org/openeda.si2.org/forum/forum.php?forum_id=20 OpenAccess Discussion Forum] (also functions as FAQ)
**[http://www.si2.org/openeda.si2.org/tracker/?atid=101&group_id=5&func=browse OpenAccess Bug Tracker]
**[http://www.si2.org/openeda.si2.org/tracker/?atid=104&group_id=5&func=browse OpenAccess Enhancement Tracker]
*[http://oawiki.si2.org OpenAccess Public Wiki]
*[http://oascript.si2.org OpenAccess Scripting Languages Public Wiki] with documentation on the C#, Perl, Python, Ruby and Tcl language bindings

[[Category:Electronic design automation software]]
[[Category:Proprietary software]]