Recent years have seen a great variety of applications of DEA (Data Envelopment Analysis) for use in evaluating the performance of many different kinds of entities engaged in many different activities in many different contexts in many different countries. One reason is that DEA has opened up possibilities for use in cases which have been resistant to other approaches because of the complex (often unknown) nature of the relations between the multiple inputs and multiple outputs involved in many of these activities (which are often reported in non-commeasurable units). Examples include the maintenance activities of U.S. Air Force bases in different geographic locations, or police forces in England and Wales as well as performances of branch banks in Cyprus and Canada and the efficiency of universities in performing their education and research functions in the U.S., England and France. These kinds of applications extend to evaluating the performances of cities, regions and countries with many different kinds of inputs and outputs that include "social" and "safety-net" expenditures as inputs and various "quality-of-life" dimensions as outputs.

DEA-Solver-Pro is designed on the basis of the textbook: Data Envelopment Analysis-A Comprehensive Text with Models, Applications, References and DEA-Solver Software, by W.W. Cooper, L.M. Seiford and K. Tone, 2nd edition (Springer 2006). DEA Book 2nd Edition (hardcover)

You may try a slightly older version: DEA Book 1st Edition (paperback)

Notice

Potential users for the professional version of DEA-Solver-Pro are encouraged to purchase the text book first, and use the student version of the software included in the book, before purchasing the professional version. The book serves as a beginner's manual. We also provide "Introduction to DEA-Solver-Pro" which contains the introduction and references to the new models not covered by the Springer textbook.

Supported Plaforms:

Latest Release

Version 6.0 introduced network DEA for evaluating interconnected DMUs where outputs of some DMUs become inputs to other DMUs. Network DEA is particulary useful for evaluating internal divisions and departments of large organizations. For more information on version 6.0, click DEA Solver Newsletter No. 7.

The latest release 6.0i improves the installation process, especially for Windows Vista. (Note that if you use version 6.0f or an earlier one, you need to create a new directory C:\SAITECH\DEA-Solver\sec for this release. Check the Readme file, which is included in the download file, for detail) Previous versions had minor fixes for Non-Oriented model.

The last release for version 5.0 was 5.0g, which corrected a problem in ARG models. If you are a version 5.0 user and would like to obtain the last version 5.0g, you can still go to download page.

Last version 5.0 updates improved numerical calculation, enabled an Excel importing function to read linked data, reinforced the collection of DEA models by the addition of Hybrid and the Weighted SBM models and modified the Non-separable Outputs model in the Undesirable Outputs clusters. We also added worksheets gDecompositionhto the SBM-family and Non-separable Output models. This includes the decomposition of efficiency score into inefficiency of each input/output factor.

For the previous newsletters, click the DEA Solver Newsletters.

Network Licnese & Floating License

We offer a network license of DEA-Solver-Pro as well. With a network license, you can use the server version of the software from client PC's in a local area network. This feature is particularly suited to a class room situation where a number of students may use the software concurrently.

Similarly, a floating license is available now. With 1 user floating license, you can install the program on multiple PCs, like at home, at work or at visiting places, and then you can use the software on the PC with the licensed dongle attached to a USB port. It is a convenient way to use the program on mutiple CPU's. See more details in Purchase Information below.

Downloading the Latest Versions

Version 6.0 is now released with new features inlcuding Network DEA. Currently we make both (version 5.0 & 6.0) versions available for download.

* For version 5.0 users:

If you have a version 5.0, you can still download the last version 5.0g free. Click here for DEA software. If you would like to obtain version 6.0, it will be an upgrade as described below. Note that to download the DEA files, you need a password to extract the file and install it by yourself.

* For version 4.0 or ealier-version users:

If you have an older version and would like to upgrade it, you can purchase a new version 6.0.

Purchase Information

If you would like to purchase the license for DEA-Solver-PRO, download the order form, and fax it to us with signature. Upon receiving your order form, we will let you know the download method. Note that installing the software implies that you have agreed with the license contract. You can download the license agreement by clicking on the DEA-Solver-Pro License Agreement.

The current price for one CPU license is $ 800 for educational institutions (students and teachers only), and $1,600 for businesses (prices as of November 2008). Note these prices are for a single CPU (including Core 2 or dual core CPU) license only. The second license has to be purchased at $400 for additional CPU's and/or PCs at educational institutions, and $800 for businesses. A license on a quad CPU on a server costs twice the regular license fees above.

If you already purchased a version 1 through 5, the version-up price for version 6.0 is a half of the regular license fee. Prices are subject to change without notice.

The network license fees depend on the number of concurrent users on the network. You can download the current network & floating license prices. Prices may change without notice.

Note that because of legal complexity involved, we will not review any change requests for the license agreement.

Japanese customers who wish to pay in Japanese yen, use the order form by downloading the Japanese order form. Japanese license prices are quoted on the Japanese page, which can be reached by clicking the Japanese flag above. Please fax the order form to SAITECH Japan at 03-5579-7823.

Software Distribution Method

Currently we distribute the software by download, i.e. with no CD shipment. However, if you request, we can send you a CD with an additional charge. Shipping option, mainly by the USPS Express, costs $ 30 for US destinations and $ 40 for outside USA. Costs by other services, i.e. the UPS ground or express, FeDex or DHL, may vary according to carrier-destination dependent charges. If you want a CD, indicate it on your application form and also indicate clearly the destination address. For network and floating licenses, we will ship a CD and a licensed dongle.

Caveats for Registration key and Technical Support

Note that requesting for registration key or technical support is processed only by email. Always include your name, organization, the date you purchased the license and the version number in your correspondence. Please be aware that it may take often more than a day to make the registration key work, and although we try to process the customer requests as soon as possible, we can not guarantee any turn-around time for issuing a registration key or answering technical help.

For network and floating licenses, there is no registration key, but a licensed dongle is required at a USB port.

Relicensing Software because of OS changes and hardware crashes

For hard disk crashes or Windows OS upgrades in the future, you may need a new registration key. In such a case, send us a letter requesting a new registration key, with original licensing information, such as the date, version number, user name and organization, signed by an official person other than the licensee. We will issue a free registration key upon receiving such a letter. Note that there will be a handling charge if you request an old-version software (only available by a CD) as well.

If you would like to obtain the latest version at the same time, there will be a version-up cost as above. In this case, download and send us an order form with the version-up request.

Time Limit for issuing a Registration Key

Each licensee must request a registration key for each license within 60 days from the purchase date. Requests for registration key after the 60-day period may not be fulfilled.

Consulting Services

We offer consulting services on application of the software to real-world cases. Get in touch with us by email.

Inquries

If you need more information on the software and services, contact us by email.