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$256.80 $5.54
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$76.60, Jul 29 1:41 pm $41.67, Jul 29 1:41 pm $76.40, Jul 31 9:22 am $30.21, Jul 30 - Aug 3 $74.07, Aug 2 - Aug 4 $30.21, Jul 30 - Aug 3 $74.07, Aug 2 - Aug 4 $29.35, Aug 4 12:24 am $71.85, Aug 4 - Aug 5 $27.11, Aug 5 - Aug 7 $71.51, Aug 7 1:51 am $27.11, Aug 5 - Aug 7 $85.58, Aug 9 - Aug 13 $25.96, Aug 9 - Aug 10 $85.58, Aug 9 - Aug 13 $25.67, Aug 12 12:05 am $85.58, Aug 9 - Aug 13 $25.63, Aug 13 - Aug 15 $66.98, Aug 14 8:08 pm $25.63, Aug 13 - Aug 15 $80.63, Aug 16 - Aug 17 $27.11, Aug 16 6:50 pm $98.84, Aug 18 6:26 pm $27.11, Aug 18 - Aug 28 $77.81, Aug 19 11:50 pm $27.11, Aug 18 - Aug 28 $74.67, Aug 22 2:33 am $27.11, Aug 18 - Aug 28 $74.31, Aug 23 1:32 am $27.11, Aug 18 - Aug 28 $71.21, Aug 25 10:15 am $27.11, Aug 18 - Aug 28 $70.97, Aug 26 11:26 am $27.11, Aug 18 - Aug 28 $83.43, Aug 28 3:30 pm $27.11, Aug 18 - Aug 28 $83.15, Aug 29 6:49 pm $21.35, Aug 29 6:49 pm $82.91, Aug 30 11:27 pm $15.62, Aug 30 11:27 pm $79.79, Sep 2 7:52 am $9.70, Sep 2 7:52 am $79.63, Sep 3 11:39 am $6.60, Sep 3 11:39 am $76.72, Sep 5 10:32 pm $5.99, Sep 4 - Sep 10 $76.52, Sep 7 - Sep 8 $5.99, Sep 4 - Sep 10 $70.52, Sep 10 5:10 pm $5.99, Sep 4 - Sep 10 $86.89, Sep 11 10:06 pm $28.75, Sep 11 - Oct 10 $86.45, Sep 13 2:08 am $28.75, Sep 11 - Oct 10 $83.01, Sep 15 1:50 am $28.75, Sep 11 - Oct 10 $78.91, Sep 19 3:21 am $28.75, Sep 11 - Oct 10 $78.78, Sep 22 1:54 am $28.75, Sep 11 - Oct 10 $75.90, Sep 23 9:16 pm $28.75, Sep 11 - Oct 10 $73.22, Sep 25 8:58 pm $28.75, Sep 11 - Oct 10 $73.12, Sep 27 10:59 pm $28.75, Sep 11 - Oct 10 $70.83, Sep 29 11:54 pm $28.75, Sep 11 - Oct 10 $74.33, Oct 2 2:47 am $28.75, Sep 11 - Oct 10 $71.95, Oct 4 4:58 am $28.75, Sep 11 - Oct 10 $71.57, Oct 6 6:23 am $28.75, Sep 11 - Oct 10 $69.38, Oct 8 8:08 am $28.75, Sep 11 - Oct 10 $74.40, Oct 10 11:19 am $28.75, Sep 11 - Oct 10 $72.05, Oct 12 1:27 pm $27.50, Oct 12 - Oct 18 $71.83, Oct 14 3:17 pm $27.50, Oct 12 - Oct 18 $69.64, Oct 16 7:12 pm $27.50, Oct 12 - Oct 18 $67.49, Oct 18 11:42 pm $27.50, Oct 12 - Oct 18 $74.47, Oct 21 4:23 am $27.48, Oct 21 4:23 am $73.93, Oct 23 10:52 am $27.46, Oct 23 10:52 am $68.74, Oct 28 6:50 pm $27.43, Oct 28 6:50 pm $71.33, Nov 3 4:43 am $27.41, Nov 3 4:43 am $71.47, Nov 9 1:11 pm $27.40, Nov 9 1:11 pm $66.76, Nov 15 3:05 am $27.36, Nov 15 3:05 am $64.71, Nov 18 10:38 am $26.46, Nov 18 10:38 am $64.64, Nov 20 4:07 pm $25.52, Nov 20 4:07 pm $62.66, Nov 22 7:41 pm $24.31, Nov 22 7:41 pm $60.72, Nov 24 9:52 pm $23.70, Nov 24 9:52 pm $60.68, Nov 26 8:08 pm $23.56, Nov 26 8:08 pm $58.82, Nov 28 6:24 pm $23.14, Nov 28 6:24 pm $57.02, Nov 30 4:43 pm $22.95, Nov 30 4:43 pm $56.98, Dec 2 3:21 pm $22.78, Dec 2 3:21 pm $55.25, Dec 4 2:09 pm $22.61, Dec 4 2:09 pm $53.55, Dec 6 11:12 am $22.47, Dec 6 11:12 am $71.70, Dec 8 1:51 pm $22.29, Dec 8 1:51 pm $69.15, Dec 10 7:48 pm $22.11, Dec 10 7:48 pm $68.95, Dec 12 4:49 pm $21.94, Dec 12 4:49 pm $66.69, Dec 14 2:55 pm $21.49, Dec 14 2:55 pm $66.65, Dec 16 2:39 pm $20.68, Dec 16 2:39 pm $64.61, Dec 18 1:23 pm $19.67, Dec 18 1:23 pm $62.32, Dec 22 3:20 pm $17.76, Dec 22 3:20 pm $60.45, Dec 23 6:12 pm $17.42, Dec 23 6:12 pm $73.28, Dec 25 9:12 pm $17.72, Dec 24 - Dec 26 $72.98, Dec 26 11:41 pm $17.72, Dec 24 - Dec 26 $74.09, Dec 28 11:42 pm $17.71, Dec 28 11:42 pm $88.96, Dec 30 12:07 pm $17.68, Dec 30 12:07 pm $88.82, Jan 1 3:11 am $17.64, Jan 1 3:11 am $85.65, Jan 2 11:01 pm $17.58, Jan 2 11:01 pm $85.28, Jan 4 9:06 am $17.50, Jan 4 - Jan 5 $84.92, Jan 5 8:03 am $17.50, Jan 4 - Jan 5 $81.90, Jan 7 1:00 pm $24.43, Jan 7 - Jan 10 $79.03, Jan 9 4:14 pm $24.43, Jan 7 - Jan 10 $78.75, Jan 10 8:12 pm $24.43, Jan 7 - Jan 10 $75.95, Jan 12 3:18 am $24.44, Jan 12 - Jan 27 $75.54, Jan 13 3:21 pm $24.44, Jan 12 - Jan 27 $73.01, Jan 15 6:57 am $24.44, Jan 12 - Jan 27 $72.71, Jan 16 - Jan 18 $24.44, Jan 12 - Jan 27 $74.44, Jan 20 6:41 am $24.44, Jan 12 - Jan 27 $74.20, Jan 21 9:18 pm $24.44, Jan 12 - Jan 27 $71.54, Jan 23 11:37 am $24.44, Jan 12 - Jan 27 $74.29, Jan 25 3:09 am $24.44, Jan 12 - Jan 27 $73.83, Jan 26 8:33 pm $24.44, Jan 12 - Jan 27 $74.53, Jan 27 5:38 pm $24.44, Jan 12 - Jan 27 $74.06, Jan 29 10:00 am $24.18, Jan 29 - Jan 31 $94.30, Jan 31 5:03 am $24.18, Jan 29 - Jan 31 $91.42, Feb 1 10:45 pm $23.87, Feb 1 - Feb 3 $89.18, Feb 3 4:48 pm $23.87, Feb 1 - Feb 3 $87.36, Feb 5 10:59 am $24.18, Feb 5 10:59 am $85.88, Feb 7 6:18 am $22.66, Feb 7 6:18 am $83.80, Feb 9 1:50 am $20.35, Feb 9 1:50 am $82.92, Feb 10 8:54 pm $19.59, Feb 10 - Feb 14 $81.40, Feb 12 4:20 pm $19.59, Feb 10 - Feb 14 $86.62, Feb 14 11:48 am $19.59, Feb 10 - Feb 14 $85.28, Feb 16 8:02 am $15.47, Feb 16 - Feb 22 $84.20, Feb 18 6:22 am $15.47, Feb 16 - Feb 22 $82.44, Feb 20 4:00 am $15.47, Feb 16 - Feb 22 $81.02, Feb 22 1:57 am $15.47, Feb 16 - Feb 22 $79.88, Feb 24 12:37 am $15.18, Feb 24 - Feb 27 $82.44, Feb 25 9:58 pm $15.18, Feb 24 - Feb 27 $81.02, Feb 27 7:46 pm $15.18, Feb 24 - Feb 27 $79.68, Mar 1 8:11 pm $11.18, Mar 1 8:11 pm $77.48, Mar 4 1:47 am $10.92, Mar 4 1:47 am $75.10, Mar 6 4:55 am $10.91, Mar 6 4:55 am $72.62, Mar 8 5:26 am $15.12, Mar 8 5:26 am $70.56, Mar 10 10:56 am $10.90, Mar 10 10:56 am $68.74, Mar 12 5:40 pm $10.89, Mar 12 - Mar 15 $67.26, Mar 15 2:17 am $10.89, Mar 12 - Mar 15 $65.56, Mar 17 3:18 pm $10.86, Mar 17 3:18 pm $64.58, Mar 20 12:15 am $10.84, Mar 20 12:15 am $79.54, Mar 22 7:10 am $10.81, Mar 22 7:10 am $76.66, Mar 24 2:11 pm $10.77, Mar 24 2:11 pm $74.30, Mar 26 9:59 pm $10.76, Mar 26 - Mar 29 $72.40, Mar 29 7:21 am $10.76, Mar 26 - Mar 29 $70.86, Mar 31 3:25 pm $10.74, Mar 31 3:25 pm $69.62, Apr 3 - Apr 10 $10.72, Apr 3 6:52 am $69.62, Apr 3 - Apr 10 $10.71, Apr 5 10:25 pm $69.62, Apr 3 - Apr 10 $10.70, Apr 7 6:33 am $69.62, Apr 3 - Apr 10 $10.15, Apr 10 - Apr 12 $108.41, Apr 12 7:18 pm $10.15, Apr 10 - Apr 12 $103.85, Apr 15 3:48 pm $9.64, Apr 15 3:48 pm $101.73, Apr 18 5:06 am $9.63, Apr 18 5:06 am $94.73, Apr 20 9:09 pm $8.68, Apr 20 9:09 pm $88.57, Apr 23 2:35 pm $8.62, Apr 23 2:35 pm $81.97, Apr 26 6:51 pm $7.90, Apr 26 6:51 pm $76.37, Apr 29 4:15 pm $7.09, Apr 29 4:15 pm $72.28, May 2 9:58 am $6.34, May 2 9:58 am $80.46, May 5 1:18 am $5.78, May 5 1:18 am $71.49, May 8 7:41 pm $5.54, May 8 7:41 pm $66.01, May 12 3:22 am $7.89, May 12 - May 15 $64.56, May 15 - Jun 1 $7.89, May 12 - May 15 $64.56, May 15 - Jun 1 $7.91, May 19 - Jun 10 $64.55, Jun 6 9:49 am $7.91, May 19 - Jun 10 $67.02, Jun 10 - Jun 14 $7.91, May 19 - Jun 10 $67.02, Jun 10 - Jun 14 $7.96, Jun 14 - Jul 4 $68.56, Jun 18 4:21 am $7.96, Jun 14 - Jul 4 $66.16, Jun 21 - Aug 6 $7.96, Jun 14 - Jul 4 $66.16, Jun 21 - Aug 6 $8.37, Jul 8 - Jul 13 $66.16, Jun 21 - Aug 6 $8.38, Jul 17 - Aug 2 $66.16, Jun 21 - Aug 6 $8.37, Aug 6 2:32 am $64.55, Aug 9 9:23 pm $8.35, Aug 9 - Aug 24 $66.16, Aug 13 3:51 pm $8.35, Aug 9 - Aug 24 $67.36, Aug 17 - Aug 24 $8.35, Aug 9 - Aug 24 $64.55, Aug 28 - Sep 1 $9.00, Aug 28 - Oct 10 $68.56, Sep 5 - Sep 9 $9.00, Aug 28 - Oct 10 $67.50, Sep 13 - Sep 20 $9.00, Aug 28 - Oct 10 $68.56, Sep 24 - Sep 28 $9.00, Aug 28 - Oct 10 $44.99, Oct 2 - Nov 11 $9.00, Aug 28 - Oct 10 $44.99, Oct 2 - Nov 11 $15.50, Oct 14 7:13 pm $44.99, Oct 2 - Nov 11 $15.10, Oct 18 3:10 pm $44.99, Oct 2 - Nov 11 $39.37, Oct 22 - Nov 7 $48.17, Nov 11 2:08 pm $44.99, Oct 2 - Nov 11 $84.87, Nov 15 - Nov 24 $50.76, Nov 15 6:23 pm $84.87, Nov 15 - Nov 24 $59.28, Nov 20 3:22 am $84.87, Nov 15 - Nov 24 $53.47, Nov 24 1:31 pm $127.37, Nov 29 - Dec 9 $63.59, Nov 29 5:43 am $127.37, Nov 29 - Dec 9 $63.50, Dec 4 3:09 am $127.37, Nov 29 - Dec 9 $67.00, Dec 9 1:13 am $127.24, Dec 14 3:36 am $53.44, Dec 14 3:36 am $127.37, Dec 19 6:02 am $55.91, Dec 19 - Dec 24 $256.80, Dec 24 - Dec 29 $55.91, Dec 19 - Dec 24 $256.80, Dec 24 - Dec 29 $57.70, Dec 29 3:55 am $126.56, Jan 2 10:59 pm $56.48, Jan 2 10:59 pm $125.06, Jan 7 8:02 pm $47.39, Jan 7 8:02 pm $123.96, Jan 12 6:33 pm $56.02, Jan 12 6:33 pm $119.25, Jan 17 6:21 pm $55.87, Jan 17 6:21 pm $118.55, Jan 22 7:14 pm $55.72, Jan 22 7:14 pm $117.35, Jan 27 9:43 pm $60.01, Jan 27 - Feb 12 $116.75, Feb 1 8:57 pm $60.01, Jan 27 - Feb 12 $115.55, Feb 6 10:54 pm $60.01, Jan 27 - Feb 12 $114.03, Feb 12 2:29 am $60.01, Jan 27 - Feb 12 $112.86, Feb 17 12:02 pm $56.47, Feb 17 12:02 pm $111.33, Feb 23 1:23 am $55.14, Feb 23 1:23 am $110.97, Feb 28 9:12 am $54.35, Feb 28 9:12 am $110.53, Mar 12 - Mar 24 $51.11, Mar 12 3:15 am $110.53, Mar 12 - Mar 24 $46.33, Mar 24 12:58 am $109.96, Mar 29 9:41 pm $43.89, Mar 29 9:41 pm $74.91, Apr 10 6:56 am $42.24, Apr 10 6:56 am
133,441 2,704,073
2,050,781
1,367,188
683,594
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Price Details
3rd Party New
Latest
$74.91 79 mins ago
Highest
$256.80 Dec 24, '15
Lowest
$44.99 Oct 2, '15
Average
$110.31 (30d avg) $113.68 (90d avg) $109.12 (180d avg) $88.59 (365d avg) $82.64 (Lifetime average)
Added
Jul 29, 2014
3rd Party Used
Latest
$42.24 79 mins ago
Highest
$67.00 Dec 9, '15
Lowest
$5.54 May 8, '15
Average
$47.32 (30d avg) $53.80 (90d avg) $51.45 (180d avg) $29.41 (365d avg) $26.19 (Lifetime average)
Added
Jul 29, 2014
Sales Rank
30 day average: 1,100,732 90 day average: 1,358,860
Product Description
Historically, the terms validation and verification have been very loosely defined in the system engineering world, with predictable confusion. Few hardware or software testing texts even touch upon validation and verification, despite the fact that, properly employed, these test tools offer system and test engineers powerful techniques for identifying and solving problems early in the design process. Together, validation and verification encompass testing, analysis, demonstration, and examination methods used to determine whether a proposed design will satisfy system requirements.
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