{"id":1148,"date":"2011-04-25T09:28:16","date_gmt":"2011-04-25T16:28:16","guid":{"rendered":"https:\/\/blogs.plm.automation.siemens.com\/t5\/Siemens-PLM-Corporate-Blog\/Parametric-AND-Direct\/ba-p\/334650"},"modified":"2026-03-26T11:05:29","modified_gmt":"2026-03-26T15:05:29","slug":"parametric-and-direct","status":"publish","type":"post","link":"https:\/\/blogs.sw.siemens.com\/news\/parametric-and-direct\/","title":{"rendered":"Parametric AND Direct"},"content":{"rendered":"<p><P><IMG class=\"alignnone size-full wp-image-5465\" src=\"http:\/\/community.plm.automation.siemens.com\/legacyfs\/online\/wordpress\/images\/2011\/04\/ScreenHunter_01-Apr.-23-13.49.jpg\" alt=\"\" width=\"300\" height=\"300\" \/><BR \/><BR \/>A few weeks ago I watched the <A href=\"http:\/\/www.cadalystedge.com\/podcast\/ote-4-cad-smackdown-1-video-replays\/2011\/02\/24\" rel=\"nofollow noopener noreferrer\">Parametric versus Direct Smackdown<\/A> between a number of CAD vendors (including our own Dan Staples).&nbsp; We are also seeing more of the CAD companies put out more information and videos around this subject.<BR \/><BR \/>The interesting part of this debate is there really is no more debate.&nbsp; Everyone that participated basically said both are important and both offer advantages depending on the problem you are solving.&nbsp; As a CAD designer, you want both tools in your toolbox, pulling out the screw driver when you need a screwdriver and the hammer when you need a hammer.&nbsp; Maybe, in a few cases, you only ever need a hammer but who knows what is coming down the road. If I was buying some expensive CAD software, I\u2019d like to keep my options open.<!--more--><BR \/><BR \/>OK, so as a new CAD customer, I basically just need to go to a company that supports both or maybe pick one \u201cdirect\u201d and one \u201cparametric\u201d product from two vendors, right?&nbsp; Well, it\u2019s more complicated than that and part of my reason for&nbsp;writing&nbsp;this post today. For example:<BR \/><UL><BR \/>\t<LI>There is no reason a \u201cdirect\u201d editing tool can\u2019t support parametrics. In fact, most are. \u201cDirect\u201d may be history free (by some definitions) but it doesn\u2019t have to be parametrics free. (and for Pete\u2019s sake marketing people, look up the&nbsp;definition&nbsp;of the word \u201cparametric\u201d.Parametric &gt; History ).<\/LI><BR \/>\t<LI>Are you going to have to pay twice, once for the history based parametric tool, once for the direct tool?<\/LI><BR \/>\t<LI>Can the direct solution support the concept of features (and I don\u2019t just mean face sets). Sometimes a hole is just a cylindrical cutout and sometimes a hole is a hole.<\/LI><BR \/>\t<LI>Are you going to have to learn two different user interfaces?<\/LI><BR \/>\t<LI>At what level can you mix history-based and history-free technologies? In the end, does it all have to be history based? Can you just mix them at the assembly level?&nbsp; Can you mix them at the individual part level?<\/LI><BR \/>\t<LI>Can you use the direct editing tools and the Assembly level? Can you use parametrics at the assembly level to maintain relationships between parts?<\/LI><BR \/>\t<LI>What is the history of your history-free direct modeler?&nbsp; Is it being used in production? Does it have a track record? What customers are using it every day for real work?<\/LI><BR \/><\/UL><BR \/>OK, obviously, I\u2019m a <A href=\"http:\/\/www.plm.automation.siemens.com\/en_us\/plm\/definition\/synchronous_technology.shtml\" rel=\"nofollow noopener noreferrer\">Solid Edge Synchronous Technology<\/A> guy and we have good answers to all these questions. My hope is to raise awareness, not market but they sometimes look the same\u2026sigh. If you really hate it, skip the next paragraph.<BR \/><BR \/>For the <A title=\"PDF file on Solid Edge\" href=\"http:\/\/www.plm.automation.siemens.com\/en_us\/Images\/Siemens-PLM-Solid-Edge-ST3-CPDAWhitePaper_tcm1023-104669.pdf\" rel=\"nofollow noopener noreferrer\">Solid Edge<\/A> customer, they can buy a single copy of Solid Edge and it is happy to work as a history based modeler. Or, with the same UI, they can use it as a \u201cDirect\u201d modeler &#8211; only our direct modeler support parametrics and features ( oh, and it\u2019s all free \u2013 no new app to buy. No new downloading and installing.)&nbsp; Don\u2019t like history based modeling?&nbsp; You can turn it off and hide it all away. Want to mix techniques in the same part? Why not? This is hugely powerful.&nbsp; Plus, there is no sending of data to another application or change in the UI.Need customer references to be sure the technology is being used in the real world or a user community that can help you? Yes, we have that too.<BR \/><BR \/>OK, I\u2019ll stop marketing now.&nbsp; The point is, dig deeper.&nbsp; Do your homework. One debate may be dead but many other debates live on.<\/P><\/p>\n","protected":false},"excerpt":{"rendered":"<p>A few weeks ago I watched the Parametric versus Direct Smackdown between a number of CAD vendors (including our own Dan Staples).&nbsp; We are also seeing more of the CAD companies put out more infor&#8230;<\/p>\n","protected":false},"author":54987,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"spanish_translation":"","french_translation":"","german_translation":"","italian_translation":"","polish_translation":"","japanese_translation":"","chinese_translation":"","footnotes":""},"categories":[1],"tags":[],"industry":[],"product":[],"coauthors":[],"class_list":["post-1148","post","type-post","status-publish","format-standard","hentry","category-news"],"_links":{"self":[{"href":"https:\/\/blogs.sw.siemens.com\/news\/wp-json\/wp\/v2\/posts\/1148","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/blogs.sw.siemens.com\/news\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/blogs.sw.siemens.com\/news\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/blogs.sw.siemens.com\/news\/wp-json\/wp\/v2\/users\/54987"}],"replies":[{"embeddable":true,"href":"https:\/\/blogs.sw.siemens.com\/news\/wp-json\/wp\/v2\/comments?post=1148"}],"version-history":[{"count":1,"href":"https:\/\/blogs.sw.siemens.com\/news\/wp-json\/wp\/v2\/posts\/1148\/revisions"}],"predecessor-version":[{"id":1149,"href":"https:\/\/blogs.sw.siemens.com\/news\/wp-json\/wp\/v2\/posts\/1148\/revisions\/1149"}],"wp:attachment":[{"href":"https:\/\/blogs.sw.siemens.com\/news\/wp-json\/wp\/v2\/media?parent=1148"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/blogs.sw.siemens.com\/news\/wp-json\/wp\/v2\/categories?post=1148"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/blogs.sw.siemens.com\/news\/wp-json\/wp\/v2\/tags?post=1148"},{"taxonomy":"industry","embeddable":true,"href":"https:\/\/blogs.sw.siemens.com\/news\/wp-json\/wp\/v2\/industry?post=1148"},{"taxonomy":"product","embeddable":true,"href":"https:\/\/blogs.sw.siemens.com\/news\/wp-json\/wp\/v2\/product?post=1148"},{"taxonomy":"author","embeddable":true,"href":"https:\/\/blogs.sw.siemens.com\/news\/wp-json\/wp\/v2\/coauthors?post=1148"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}