Program komputer rekayasa (SAP2000, ETABS, STAD-III, GT-STRUDL, ANSYS, ABAQUS, ADINA) berbeda dengan program komputer umum (Word, Photoshop, Excel, AutoCAD) karena pengguna program komputer rekayasa dituntut untuk memahami latar belakang metode penyelesaian dan batasan-batasan yang dihasilkan program tersebut. Pada umumnya, developer program tidak mau bertanggung jawab untuk setiap kesalahan yang timbul akibat pemakaian program yang tidak benar, itu dapat dilihat dari berbagai kutipan disclaimer yang dinyatakan pada setiap manualnya seperti berikut.
… The program has been thoroughly tested and used. In using the program, however, the user accepts and understands that no warranty is expressed or implied by the developers or the distributors on the accuracy or the reliability of the program. The user must explicitly understand the assumptions of the program and must independently verify the results. SAP2000 - Computers and Structures, Inc., Berkeley, California, USA CA&SI does not guarantee the correctness or usefulness of the results obtained using PCGLSS, CA&SI is not liable for any conclusion or actions based on the result. It is the responsibility of the user to confirm the accuracy and usefulness of the results. ANSYS – Computational Applications and System Integration Inc., Urbana, IL, USA This manual is intended for qualified users who will exercise sound engineering judgment and expertise. The ABAQUS Software is inherently complex, …. Users are cautioned to satisfy themselves as to the accuracy and results of their analyses. ABAQUS, Inc. will not be responsible for the accuracy or usefulness of any analysis performed using the ABAQUS Software or the procedures, examples, or explanations in this manual. ABAQUS, Inc., 166 Valley Street, Providence, RI 02909, USA
Meskipun demikian, dalam manualnya selalu disajikan bukti perbandingan analisis yang menunjukkan bahwa program yang dibuatnya telah teruji, dapat menyelesaikan kasus-kasus tertentu yang telah terbukti hasilnya.
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