41. Emphasized the need to42. Identifies six key issues surrounding high technology43. A comprehensive study of the... has been undertaken44. Much work has been reported recently in these filed45. Proposed/Presented/State that/Described/Illustrated/Indicated/Has shown / showed/Address/Highlights 46. Point out that the problem of 47. A study on ...was done / developed by [] 48. Previous work, such as [] and [], deal only with49. The approach taken by [] is 50. The system developed by [] consists 51. A paper relevant to this research was published by [] 52. []'s model requires consideration of... 53. []' model draws attention to evolution in human development 54. []'s model focuses on... 55. Little research has been conducted in applying ... to 56. The published information that is relevant to this research... 57. This study further shows that 58. Their work is based on the principle of 59. More history of ... can be found in xx et al. [1979]. 60. Studies have been completed to established 61. The ...studies indicated that 62. Though application of xx in the filed of xx has proliferated in recent years, effort in analyzing xx, especially xx, is lacking.Problem / Issue / Question 63. Unfortunately, real-world engineering problems such as manufacturing planning do not fit well with this narrowly defined model. They tend to span broad activities and require consideration of multiple aspects. 64. Remedy / solve / alleviate these problems 67. ... is a difficult problem, yet to be adequately resolved 68. Two major problems have yet to be addressed 69. An unanswered question 70. This problem in essence involves using x to obtain a solution. 71. An additional research issue to be tackled is .... 72. Some important issues in developing a ... system are discussed 73. The three prime issues can be summarized: 74. The situation leads to the problem of how to determine the ... 75. There have been many attempts to 76. It is expected to be serious barrier to 77. It offers a simple solution in a limited domain for a complex